Gravity-correction device



May 29, 1923. 1,456,926 w. R. HOUNSELL GRAVITY CORRECTION DEVICE Filed Jan. 10. 1922 INVENTOR .filio nseu,

ATTORNEYS 7 Patented May 29, 1923.

UNITED STATES .WILLIAM ROBERT HOUNSELL, OF OKMULGEE, OKLAHOMA.

GRAVITY -CORRECTION DEVICE.

Application filed January 10, 1922. Serial No. 528,230.

To all to from it may concern Be it known that I, WVILLIAM Ronnn'r Il OUNSELL, a subject of Great Britain, and a resident of Okmulgee, in the county of Okmulgee and State of Oklahoma, have invented certain new and useful Improvements in Gravity-Correction Devices, of which the. following is a specification.

My invention relates to calculating devices, and it consists in the combinations, constructions and arrangements herein described and claimed.'

An object of my invention is to facilitate the correction of gravities of liquids lighter than water and observed at varying temperatures by providing means operable to indicate equivalent gravities at a determined constant temperature.

A further object of my invention is to provide a calculating device of simplified construction which can be operated quickly and easily to occasion desired results being accurately indicated. 'Other objects and advantages of the invention will be apparent from the following description, and the novel .features of the invention willbe particularly outlined in the appended claims.

My invent-ion is illustrated in the accompanying drawings, forming a part of this application, in which Fig. 1 is a side elevation of a practical embodiment of the invention, portions thereof being broken away and other portions being shown in section,

Fig. 2 is a rear view of a disk included in the device, and

Fig. 3 is an enlarged detail of a fragmentary portion of the device.

In carrying out my invention, 1 provide a pedestal 01' support comprising a base 1 having an integral stem or standard 2 upstanding from the central portion thereof and provided at its upper end with an integral head 3. The upper face 4 of the head is preferably circular in conformation and lies in a plane extending at an angle of approximately 45 degrees to the perpendicular, A socket 5 extends into the head 3 from the upper face thereof and receives a spindle 6 having a portion protruding therefrom beyond the plane of the face 1. The socket 5 is enlarged diametrically at an appreciable distance from its outer end, thereby providing an annular shoulder 7.

A disk 8 has a hub 9 revolubly mounted upon the protruding portion of the spindle (3, a bearing washer 10 being disposed between the lower end of the hub and the upper end or face of the head 3. I A coiled expansion spring 11 is arranged on the spindle 6 within the enlarged portion of the socket and has its ends reacting against the annular shoulder 7 and the washer 10 for a purpose which will be hereinafter set forth.

The disk 8 has a plurality of integral radially reinforcing ribs 12 formed upon its under face, whereby the disk is stiffened and the possibility that the same may be bent or warped in service when formed of a light metal, such as aluminum, or the like, is thus obviated. The ribs 12 are by preference tapered from the hub 9 toward their outer ends.

A line 13 is scribed or otherwise formed noon the upper face of the diskS in the form of a circle concentric with the disk and appreciably smaller diametrically, thereby defining an annular space extending from the line 13 to the outer edge of the disk, in which space are marked the spacedradially extending graduations of a scale 14;.

An arm 15, which is preferably tapering, as shown, is secured at 16 to the head 3 so that the arm is disposed at an'angle of approximately 45 degrees to the perpendicular. The arm is bent laterally adjacentt its outer edge, as at 17. The laterally bent portion spans the edge of the disk 8 and carries a pointer 18 which extends radially of the disk and has a length substantially equal to the distance from the outer edge of the disk to the line 18, whereby the disk 8 may be rotated to position selected graduations of the scale 14 directly beneath the pointer 18.

A sector 19 is revolubly mounted upon the spindle 6 between washers 20 and 21 to overhe the disk 8. The sector 19 has a radius substantially equal to that of the circle defined by the line 13 and is preferably formed in such manner that the outer edge thereof is bent back and beveled, as indicated at 22, to rest evenly upon the upper face of the disk 8 along a portion of the line 13. A lock nut 23 threadedly engages the spindle 6 and holds the hereinbefore described parts mounted upon the spindle against displace ment. A scale 24 comprises radially extending graduations marked along the outer edge of the sector 19. An index line is From the foregoing description of the" various parts of the-de vice, the operation thereof may be readily understood, The embodiment-of the'invention illustrated is designed primarily for use in correcting laum gravities'of liquidslighter than water and-observed at different temperatures to degrees Baum at a determined constant temperature, which inpractice is F. It willbe understood that the graduations of the scales l t and 2% represent correlated val-- ues.'- In usinglthe device, with Tagliabuc hyd'rometersusing the modulus 14ll5 131.5l-B

the gradua-tions'ofthe scale 14 denote degrees Baum, while the graduations of the scale 2% denote degreesFahrenheitof temperature. The indexline 2'5 coincides with the graduationrepresenting: (30 F. since gravities are corrected to that temperature inthe service hereinb'efo're referred to.

In practicepthedisk 8 is revolved until the graduations of the scale let-denoting the observed gravity of a liquid lighter than water indegrees Baum underlies the pointer 18: The sector '19 is now rotated relatively to the dis "8 untilthe graduation on the scale 24 representing in degrees Fahrenheit the temperature'ofthe liquid at the time the indicated gravity was determined, is also'indicatedby the pointer 18. The index line 25 will then indicate in the scale 14- the gravity indegrees Baum at 60 F, of the liquid which is .-beingtested. 7

It will thusbe apparent that desired re sults may bequiekly and accurately ascertained and that the'possibility of error which is-alWay-s present when-results must be ob tained by mathematical calculation, is reduced to a minimunn The spring 11 is of sufficient strength to normally maintain the rotatable parts mounted on the spindle 6 in any position to which moved.

I claim 7- 1. A calculating device comprising a disk provided with a scale on one face thereof, a sector provided with a scale and with an indeX element adapted to cooperate with'the scale on the disk, means for supporting said disk and said sector for independent revoluble movement, and a pointer supported upon said supporting-means and adapted to cooperate vith both'of said scales.

2. A calculating device comprising a support, a disk revolubly mounted thereon and provided with a scale on one face thereof, a sector revolublymounted on said support in overlying relation to the said face of the disk said-sector being provit ed witha scale on a portion thereof adjacent to the first named scale and with an index element adi'u ted to cooperate with said first named scale, and a pointer mounted upon said support and adapted to cooperate with both of said scales, y

3. A calculating devicecomprisinga support, a disk revolubly supported thereon and provided with a scale on its face adjacent'to the outer edge thereof, a sector supported in superposed relation to the disk for rota tion about the axis of the latter, the length of said sector being lessthan that of a radius of the disk and said sector having a scale thereonndjacent to itsouter edge and an indexelement adapted to cooperate with botliscales. an arm secured to said support and being'ben't laterally adjacent to its end to span the edge of saiddiskQand a pointer at the end'ofsaid arm" adapted to cooperate with both'of said scales, the values of the said scales being correlated.

W IIJLTAM ROBE RT FlOUNS'ELL. 

